Mayan civilization
a. had such a sophisticated religious system that it was adopted by the Spanish invaders.
b. may have been composed of approximately thirty million people at its height.
c. was located in the northern part of the Valley of Mexico.
d. was never wealthy.

Option E, declined before 1000 CE., is the right answer.

Explanation:

A civilization developed by the Maya people came to be known as the Mayan Civilization. This civilization flourished in the area which includes southeastern Mexico, area of Honduras, Guatemala and Belize and El Salvador. This civilization is popularly known for its logo-syllabic script, art, architecture, calendar, mathematics and astronomical system in Pre-Columbian America.

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